/**
  ******************************************************************************
  * @file      startup_stm32l412xx.s
  * @author    MCD Application Team
  * @brief     STM32L412xx devices vector table for GCC toolchain.
  *            This module performs:
  *                - Set the initial SP
  *                - Set the initial PC == Reset_Handler,
  *                - Set the vector table entries with the exceptions ISR address,
  *                - Configure the clock system
  *                - Branches to main in the C library (which eventually
  *                  calls main()).
  *            After Reset the Cortex-M4 processor is in Thread mode,
  *            priority is Privileged, and the Stack is set to Main.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2018 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under Apache License, Version 2.0,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/Apache-2.0
  *
  ******************************************************************************
  */

.syntax unified
.cpu cortex - m4
.fpu softvfp
.thumb

.global g_pfnVectors
.global Default_Handler

/* start address for the initialization values of the .data section.
defined in linker script */
.word   _sidata
/* start address for the .data section. defined in linker script */
.word   _sdata
/* end address for the .data section. defined in linker script */
.word   _edata
/* start address for the .bss section. defined in linker script */
.word   _sbss
/* end address for the .bss section. defined in linker script */
.word   _ebss

.equ  BootRAM,        0xF1E0F85F
/**
 * @brief  This is the code that gets called when the processor first
 *          starts execution following a reset event. Only the absolutely
 *          necessary set is performed, after which the application
 *          supplied main() routine is called.
 * @param  None
 * @retval : None
*/

.section    .text.Reset_Handler
.weak   Reset_Handler
.type   Reset_Handler, % function
Reset_Handler:
ldr   sp, = _estack   /* Set stack pointer */

            /* Call the clock system initialization function.*/
            bl  SystemInit

            /* Copy the data segment initializers from flash to SRAM */
            movs  r1, #0
            b LoopCopyDataInit

            CopyDataInit:
            ldr r3, = _sidata
                      ldr r3, [r3, r1]
                      str r3, [r0, r1]
                      adds    r1, r1, #4

                      LoopCopyDataInit:
                      ldr r0, = _sdata
                                ldr r3, = _edata
                                          adds    r2, r0, r1
                                          cmp r2, r3
                                          bcc CopyDataInit
                                          ldr r2, = _sbss
                                                    b   LoopFillZerobss
                                                    /* Zero fill the bss segment. */
                                                    FillZerobss:
                                                    movs    r3, #0
                                                    str r3, [r2], #4

                                                    LoopFillZerobss:
                                                    ldr r3, = _ebss
                                                              cmp r2, r3
                                                              bcc FillZerobss

                                                              /* Call static constructors */
                                                              bl __libc_init_array
                                                              /* Call the application's entry point.*/
                                                              bl  main

                                                              LoopForever:
                                                              b LoopForever

                                                              .size   Reset_Handler, . - Reset_Handler

                                                              /**
                                                               * @brief  This is the code that gets called when the processor receives an
                                                               *         unexpected interrupt.  This simply enters an infinite loop, preserving
                                                               *         the system state for examination by a debugger.
                                                               *
                                                               * @param  None
                                                               * @retval : None
                                                              */
                                                              .section    .text.Default_Handler, "ax", % progbits
                                                              Default_Handler:
                                                              Infinite_Loop:
                                                              b   Infinite_Loop
                                                              .size   Default_Handler, . - Default_Handler
                                                              /******************************************************************************
                                                              *
                                                              * The minimal vector table for a Cortex-M4.  Note that the proper constructs
                                                              * must be placed on this to ensure that it ends up at physical address
                                                              * 0x0000.0000.
                                                              *
                                                              ******************************************************************************/
                                                              .section    .isr_vector, "a", % progbits
                                                              .type   g_pfnVectors, % object
                                                              .size   g_pfnVectors, . - g_pfnVectors


                                                              g_pfnVectors:
                                                              .word   _estack
                                                              .word   Reset_Handler
                                                              .word   NMI_Handler
                                                              .word   HardFault_Handler
                                                              .word   MemManage_Handler
                                                              .word   BusFault_Handler
                                                              .word   UsageFault_Handler
                                                              .word   0
                                                              .word   0
                                                              .word   0
                                                              .word   0
                                                              .word   SVC_Handler
                                                              .word   DebugMon_Handler
                                                              .word   0
                                                              .word   PendSV_Handler
                                                              .word   SysTick_Handler
                                                              .word   WWDG_IRQHandler
                                                              .word   PVD_PVM_IRQHandler
                                                              .word   TAMP_STAMP_IRQHandler
                                                              .word   RTC_WKUP_IRQHandler
                                                              .word   FLASH_IRQHandler
                                                              .word   RCC_IRQHandler
                                                              .word   EXTI0_IRQHandler
                                                              .word   EXTI1_IRQHandler
                                                              .word   EXTI2_IRQHandler
                                                              .word   EXTI3_IRQHandler
                                                              .word   EXTI4_IRQHandler
                                                              .word   DMA1_Channel1_IRQHandler
                                                              .word   DMA1_Channel2_IRQHandler
                                                              .word   DMA1_Channel3_IRQHandler
                                                              .word   DMA1_Channel4_IRQHandler
                                                              .word   DMA1_Channel5_IRQHandler
                                                              .word   DMA1_Channel6_IRQHandler
                                                              .word   DMA1_Channel7_IRQHandler
                                                              .word   ADC1_2_IRQHandler
                                                              .word   0
                                                              .word   0
                                                              .word   0
                                                              .word   0
                                                              .word   EXTI9_5_IRQHandler
                                                              .word   TIM1_BRK_TIM15_IRQHandler
                                                              .word   TIM1_UP_TIM16_IRQHandler
                                                              .word   TIM1_TRG_COM_IRQHandler
                                                              .word   TIM1_CC_IRQHandler
                                                              .word   TIM2_IRQHandler
                                                              .word   0
                                                              .word   0
                                                              .word   I2C1_EV_IRQHandler
                                                              .word   I2C1_ER_IRQHandler
                                                              .word   I2C2_EV_IRQHandler
                                                              .word   I2C2_ER_IRQHandler
                                                              .word   SPI1_IRQHandler
                                                              .word   SPI2_IRQHandler
                                                              .word   USART1_IRQHandler
                                                              .word   USART2_IRQHandler
                                                              .word   USART3_IRQHandler
                                                              .word   EXTI15_10_IRQHandler
                                                              .word   RTC_Alarm_IRQHandler
                                                              .word   0
                                                              .word   0
                                                              .word   0
                                                              .word   0
                                                              .word   0
                                                              .word   0
                                                              .word   0
                                                              .word   0
                                                              .word   0
                                                              .word   0
                                                              .word   0
                                                              .word   0
                                                              .word   TIM6_IRQHandler
                                                              .word   0
                                                              .word   DMA2_Channel1_IRQHandler
                                                              .word   DMA2_Channel2_IRQHandler
                                                              .word   DMA2_Channel3_IRQHandler
                                                              .word   DMA2_Channel4_IRQHandler
                                                              .word   DMA2_Channel5_IRQHandler
                                                              .word   0
                                                              .word   0
                                                              .word   0
                                                              .word   COMP_IRQHandler
                                                              .word   LPTIM1_IRQHandler
                                                              .word   LPTIM2_IRQHandler
                                                              .word   USB_IRQHandler
                                                              .word   DMA2_Channel6_IRQHandler
                                                              .word   DMA2_Channel7_IRQHandler
                                                              .word   LPUART1_IRQHandler
                                                              .word   QUADSPI_IRQHandler
                                                              .word   I2C3_EV_IRQHandler
                                                              .word   I2C3_ER_IRQHandler
                                                              .word   0
                                                              .word   0
                                                              .word   0
                                                              .word   TSC_IRQHandler
                                                              .word   0
                                                              .word   0
                                                              .word   RNG_IRQHandler
                                                              .word   FPU_IRQHandler
                                                              .word   CRS_IRQHandler


                                                              /*******************************************************************************
                                                              *
                                                              * Provide weak aliases for each Exception handler to the Default_Handler.
                                                              * As they are weak aliases, any function with the same name will override
                                                              * this definition.
                                                              *
                                                              *******************************************************************************/

                                                              .weak NMI_Handler
                                                              .thumb_set NMI_Handler, Default_Handler

                                                              .weak HardFault_Handler
                                                              .thumb_set HardFault_Handler, Default_Handler

                                                              .weak MemManage_Handler
                                                              .thumb_set MemManage_Handler, Default_Handler

                                                              .weak BusFault_Handler
                                                              .thumb_set BusFault_Handler, Default_Handler

                                                              .weak   UsageFault_Handler
                                                              .thumb_set UsageFault_Handler, Default_Handler

                                                              .weak   SVC_Handler
                                                              .thumb_set SVC_Handler, Default_Handler

                                                              .weak   DebugMon_Handler
                                                              .thumb_set DebugMon_Handler, Default_Handler

                                                              .weak   PendSV_Handler
                                                              .thumb_set PendSV_Handler, Default_Handler

                                                              .weak   SysTick_Handler
                                                              .thumb_set SysTick_Handler, Default_Handler

                                                              .weak   WWDG_IRQHandler
                                                              .thumb_set WWDG_IRQHandler, Default_Handler

                                                              .weak   PVD_PVM_IRQHandler
                                                              .thumb_set PVD_PVM_IRQHandler, Default_Handler

                                                              .weak   TAMP_STAMP_IRQHandler
                                                              .thumb_set TAMP_STAMP_IRQHandler, Default_Handler

                                                              .weak   RTC_WKUP_IRQHandler
                                                              .thumb_set RTC_WKUP_IRQHandler, Default_Handler

                                                              .weak   FLASH_IRQHandler
                                                              .thumb_set FLASH_IRQHandler, Default_Handler

                                                              .weak   RCC_IRQHandler
                                                              .thumb_set RCC_IRQHandler, Default_Handler

                                                              .weak   EXTI0_IRQHandler
                                                              .thumb_set EXTI0_IRQHandler, Default_Handler

                                                              .weak   EXTI1_IRQHandler
                                                              .thumb_set EXTI1_IRQHandler, Default_Handler

                                                              .weak   EXTI2_IRQHandler
                                                              .thumb_set EXTI2_IRQHandler, Default_Handler

                                                              .weak   EXTI3_IRQHandler
                                                              .thumb_set EXTI3_IRQHandler, Default_Handler

                                                              .weak   EXTI4_IRQHandler
                                                              .thumb_set EXTI4_IRQHandler, Default_Handler

                                                              .weak   DMA1_Channel1_IRQHandler
                                                              .thumb_set DMA1_Channel1_IRQHandler, Default_Handler

                                                              .weak   DMA1_Channel2_IRQHandler
                                                              .thumb_set DMA1_Channel2_IRQHandler, Default_Handler

                                                              .weak   DMA1_Channel3_IRQHandler
                                                              .thumb_set DMA1_Channel3_IRQHandler, Default_Handler

                                                              .weak   DMA1_Channel4_IRQHandler
                                                              .thumb_set DMA1_Channel4_IRQHandler, Default_Handler

                                                              .weak   DMA1_Channel5_IRQHandler
                                                              .thumb_set DMA1_Channel5_IRQHandler, Default_Handler

                                                              .weak   DMA1_Channel6_IRQHandler
                                                              .thumb_set DMA1_Channel6_IRQHandler, Default_Handler

                                                              .weak   DMA1_Channel7_IRQHandler
                                                              .thumb_set DMA1_Channel7_IRQHandler, Default_Handler

                                                              .weak   ADC1_2_IRQHandler
                                                              .thumb_set ADC1_2_IRQHandler, Default_Handler

                                                              .weak   EXTI9_5_IRQHandler
                                                              .thumb_set EXTI9_5_IRQHandler, Default_Handler

                                                              .weak   TIM1_BRK_TIM15_IRQHandler
                                                              .thumb_set TIM1_BRK_TIM15_IRQHandler, Default_Handler

                                                              .weak   TIM1_UP_TIM16_IRQHandler
                                                              .thumb_set TIM1_UP_TIM16_IRQHandler, Default_Handler

                                                              .weak   TIM1_TRG_COM_IRQHandler
                                                              .thumb_set TIM1_TRG_COM_IRQHandler, Default_Handler

                                                              .weak   TIM1_CC_IRQHandler
                                                              .thumb_set TIM1_CC_IRQHandler, Default_Handler

                                                              .weak   TIM2_IRQHandler
                                                              .thumb_set TIM2_IRQHandler, Default_Handler

                                                              .weak   I2C1_EV_IRQHandler
                                                              .thumb_set I2C1_EV_IRQHandler, Default_Handler

                                                              .weak   I2C1_ER_IRQHandler
                                                              .thumb_set I2C1_ER_IRQHandler, Default_Handler

                                                              .weak   I2C2_EV_IRQHandler
                                                              .thumb_set I2C2_EV_IRQHandler, Default_Handler

                                                              .weak   I2C2_ER_IRQHandler
                                                              .thumb_set I2C2_ER_IRQHandler, Default_Handler

                                                              .weak   SPI1_IRQHandler
                                                              .thumb_set SPI1_IRQHandler, Default_Handler

                                                              .weak   SPI2_IRQHandler
                                                              .thumb_set SPI2_IRQHandler, Default_Handler

                                                              .weak   USART1_IRQHandler
                                                              .thumb_set USART1_IRQHandler, Default_Handler

                                                              .weak   USART2_IRQHandler
                                                              .thumb_set USART2_IRQHandler, Default_Handler

                                                              .weak   USART3_IRQHandler
                                                              .thumb_set USART3_IRQHandler, Default_Handler

                                                              .weak   EXTI15_10_IRQHandler
                                                              .thumb_set EXTI15_10_IRQHandler, Default_Handler

                                                              .weak   RTC_Alarm_IRQHandler
                                                              .thumb_set RTC_Alarm_IRQHandler, Default_Handler

                                                              .weak   TIM6_IRQHandler
                                                              .thumb_set TIM6_IRQHandler, Default_Handler

                                                              .weak   DMA2_Channel1_IRQHandler
                                                              .thumb_set DMA2_Channel1_IRQHandler, Default_Handler

                                                              .weak   DMA2_Channel2_IRQHandler
                                                              .thumb_set DMA2_Channel2_IRQHandler, Default_Handler

                                                              .weak   DMA2_Channel3_IRQHandler
                                                              .thumb_set DMA2_Channel3_IRQHandler, Default_Handler

                                                              .weak   DMA2_Channel4_IRQHandler
                                                              .thumb_set DMA2_Channel4_IRQHandler, Default_Handler

                                                              .weak   DMA2_Channel5_IRQHandler
                                                              .thumb_set DMA2_Channel5_IRQHandler, Default_Handler

                                                              .weak   COMP_IRQHandler
                                                              .thumb_set COMP_IRQHandler, Default_Handler

                                                              .weak   LPTIM1_IRQHandler
                                                              .thumb_set LPTIM1_IRQHandler, Default_Handler

                                                              .weak   LPTIM2_IRQHandler
                                                              .thumb_set LPTIM2_IRQHandler, Default_Handler

                                                              .weak   USB_IRQHandler
                                                              .thumb_set USB_IRQHandler, Default_Handler

                                                              .weak   DMA2_Channel6_IRQHandler
                                                              .thumb_set DMA2_Channel6_IRQHandler, Default_Handler

                                                              .weak   DMA2_Channel7_IRQHandler
                                                              .thumb_set DMA2_Channel7_IRQHandler, Default_Handler

                                                              .weak   LPUART1_IRQHandler
                                                              .thumb_set LPUART1_IRQHandler, Default_Handler

                                                              .weak   QUADSPI_IRQHandler
                                                              .thumb_set QUADSPI_IRQHandler, Default_Handler

                                                              .weak   I2C3_EV_IRQHandler
                                                              .thumb_set I2C3_EV_IRQHandler, Default_Handler

                                                              .weak   I2C3_ER_IRQHandler
                                                              .thumb_set I2C3_ER_IRQHandler, Default_Handler

                                                              .weak   TSC_IRQHandler
                                                              .thumb_set TSC_IRQHandler, Default_Handler

                                                              .weak   RNG_IRQHandler
                                                              .thumb_set RNG_IRQHandler, Default_Handler

                                                              .weak   FPU_IRQHandler
                                                              .thumb_set FPU_IRQHandler, Default_Handler

                                                              .weak   CRS_IRQHandler
                                                              .thumb_set CRS_IRQHandler, Default_Handler
                                                              /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
